膜片聯軸器在傳遞扭矩的同時通過彈性膜片的的變形來補償軸向和角向的位移,是一種高性能的金屬彈性撓性聯軸器。膜片式聯軸器結構緊湊,傳遞扭矩大,使用(yong)壽命(ming)長,免(mian)維(wei)護,耐(nai)高溫(wen),耐(nai)酸堿防腐蝕,適用(yong)于高溫(wen)高速及有(you)腐蝕工況環境的軸系傳動。
膜片(pian)型聯(lian)(lian)軸器(qi)能(neng)補償(chang)主動(dong)機(ji)與從(cong)動(dong)機(ji)之(zhi)間(jian)由于制造誤差(cha)、安裝誤差(cha)、承載變(bian)形以(yi)及溫(wen)升變(bian)化的影響等(deng)所引起的軸向(xiang)、徑(jing)向(xiang)和角向(xiang)偏(pian)移。膜片(pian)彈性(xing)聯(lian)(lian)軸器(qi)屬金屬彈性(xing)元件撓(nao)性(xing)聯(lian)(lian)軸器(qi),其依靠金屬聯(lian)(lian)軸器(qi)膜片(pian)來(lai)聯(lian)(lian)接主、從(cong)動(dong)機(ji)傳遞(di)扭矩,具(ju)有彈性(xing)減振、無噪聲(sheng)、不(bu)需潤滑的優點。
膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)器至少由(you)一個(ge)膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和兩個(ge)軸(zhou)套(tao)(tao)組成。膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)被用銷(xiao)釘緊固(gu)在(zai)軸(zhou)套(tao)(tao)上(shang)(shang)一般不(bu)(bu)會松動或引起膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和軸(zhou)套(tao)(tao)之間(jian)(jian)的(de)(de)反沖。有(you)(you)一些生產(chan)商提供兩個(ge)膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的(de)(de),也有(you)(you)提供三個(ge)膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的(de)(de),中間(jian)(jian)有(you)(you)一個(ge)或兩個(ge)剛性元件(jian),兩邊(bian) 再連在(zai)軸(zhou)套(tao)(tao)上(shang)(shang)。單膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)器和雙膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)器的(de)(de)不(bu)(bu)同(tong)之處是(shi)處理各(ge)種偏差(cha)能(neng)力的(de)(de)不(bu)(bu)同(tong),鑒于其需要膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)能(neng)復雜的(de)(de)彎曲,所以單膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)器不(bu)(bu)太適(shi)應偏心。而雙膜(mo)(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)器可以同(tong)時曲向(xiang)不(bu)(bu)同(tong)的(de)(de)方向(xiang),以此來補償偏心。
梅花聯軸器是一種應用很普遍的聯軸器,也叫爪式聯軸器,是由兩個金屬爪盤和一個彈性體組成。兩個金屬爪盤一般是45號鋼,但是在要求載荷靈敏的情況下也有用鋁合金的。梅花形聯軸器經過車削,銑(xian)削,和(he)拉削等機加(jia)(jia)工方(fang)法加(jia)(jia)工而成(cheng),再經過整體熱(re)處(chu)理。以保證足夠的機械(xie)強度,市面上(shang)還有(you)一種爪(zhua)盤是(shi)鑄(zhu)件,能夠大批量的生產,而且免(mian)去了加(jia)(jia)工損耗(hao)。
梅花型聯軸器彈性體一般都是由工程塑料或橡膠組成。梅花形彈性聯軸器的壽命也就是彈性體的壽命。由于彈性體是受壓而不易受拉。一般彈性體的壽命為10年。由于彈性體具有緩沖,減振的作用,所以在有強烈振動的場合下使用較多。彈性體的性能極限溫度,決定了梅花彈性聯軸器的使用溫度(du),一(yi)般為-35至+80度(du)。
星形(xing)聯(lian)軸(zhou)器(qi)高速運轉時(shi)由于(yu)受離心力(li)的(de)(de)(de)作(zuo)用(yong)而產(chan)生的(de)(de)(de)徑(jing)向運動(dong)將(jiang)加速其磨損(sun),加設(she)外殼。除了(le)(le)能防塵(chen)存油外,減(jian)薄量(liang)不(bu)足(zu)可能會造(zao)成(cheng)干涉,減(jian)薄量(liang)過大會削弱齒(chi)(chi)(chi)(chi)的(de)(de)(de)強度,且(qie)會側(ce)隙很(hen)大。外齒(chi)(chi)(chi)(chi)的(de)(de)(de)接觸條件得到改善(shan),避免了(le)(le)在角位移條件下直齒(chi)(chi)(chi)(chi)齒(chi)(chi)(chi)(chi)端棱邊擠壓,應力(li)集中(zhong)的(de)(de)(de)弊端,同時(shi)改善(shan)了(le)(le)齒(chi)(chi)(chi)(chi)面摩擦、磨損(sun)狀況,降(jiang)低了(le)(le)噪聲(sheng),維修周(zhou)期長。星形(xing)彈性聯(lian)軸(zhou)器(qi)外齒(chi)(chi)(chi)(chi)套齒(chi)(chi)(chi)(chi)端呈(cheng)喇叭形(xing)狀,故不(bu)宜(yi)在高速和有(you)沖擊載荷情(qing)況下使(shi)用(yong),也不(bu)宜(yi)用(yong)于(yu)立軸(zhou)的(de)(de)(de)聯(lian)接。星型彈性聯(lian)軸(zhou)器(qi)整體結構設(she)計時(shi),要充分(fen)注意齒(chi)(chi)(chi)(chi)面與滾子之間的(de)(de)(de)潤(run)滑及防塵(chen),還(huan)有(you)安全防護作(zuo)用(yong)。因為鏈條萬一(yi)破斷,可能造(zao)成(cheng)人身事故。鼓度曲(qu)線曲(qu)率半(ban)徑(jing)與內齒(chi)(chi)(chi)(chi)單側(ce)減(jian)薄量(liang)成(cheng)正比,即(ji)它與齒(chi)(chi)(chi)(chi)的(de)(de)(de)嚙(nie)合間隙有(you)關,使(shi)內、外齒(chi)(chi)(chi)(chi)裝拆十分(fen)方便(bian)。
星(xing)(xing)型(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)有(you)時被誤認(ren)為是梅(mei)花聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi),他們安裝(zhuang)后的(de)(de)(de)外形(xing)幾乎相(xiang)似,但是同等型(xing)號(hao)下,星(xing)(xing)形(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)承受的(de)(de)(de)扭(niu)力更大,相(xiang)對梅(mei)花聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi),它的(de)(de)(de)內孔(kong)和(he)外形(xing)可(ke)以做到更小(xiao)。星(xing)(xing)形(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)聚氨脂彈(dan)性(xing)(xing)(xing)(xing)體(ti)(ti)由凸形(xing)爪塊限制,聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)是以工(gong)程(cheng)塑料(liao)(liao)作(zuo)彈(dan)性(xing)(xing)(xing)(xing)元(yuan)件(jian)(jian),適(shi)(shi)用(yong)于(yu)聯(lian)(lian)接(jie)兩(liang)同軸(zhou)(zhou)(zhou)線(xian)的(de)(de)(de)傳動(dong)軸(zhou)(zhou)(zhou)系(xi),具有(you)補(bu)償兩(liang)軸(zhou)(zhou)(zhou)相(xiang)對偏移、緩沖、減(jian)震、耐(nai)磨(mo)性(xing)(xing)(xing)(xing)能(neng),適(shi)(shi)應(ying)場合普(pu)遍 ,傳遞轉矩20-35000.N.M,工(gong)作(zuo)溫(wen)度-35-+80攝氏度。星(xing)(xing)型(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)中的(de)(de)(de)彈(dan)性(xing)(xing)(xing)(xing)元(yuan)件(jian)(jian)是工(gong)程(cheng)塑料(liao)(liao),由于(yu)該工(gong)程(cheng)塑料(liao)(liao)具有(you)良好的(de)(de)(de)彈(dan)性(xing)(xing)(xing)(xing)、緩沖性(xing)(xing)(xing)(xing)、減(jian)震性(xing)(xing)(xing)(xing)、耐(nai)磨(mo)性(xing)(xing)(xing)(xing),因此能(neng)很好的(de)(de)(de)補(bu)償兩(liang)傳動(dong)軸(zhou)(zhou)(zhou)系(xi)之(zhi)間的(de)(de)(de)各種(zhong)位(wei)移.星(xing)(xing)形(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)的(de)(de)(de)聚氨脂彈(dan)性(xing)(xing)(xing)(xing)體(ti)(ti)由凸形(xing)爪塊限制。特點:預(yu)應(ying)力下無齒隙的(de)(de)(de)連接(jie),用(yong)于(yu)主(zhu)軸(zhou)(zhou)(zhou)傳動(dong)、升(sheng)降平臺和(he)機床等。
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